St. Peter Flag

St. Peter

County:
Fayette County
County Seat:
No
Area (mi²):
0.521
State:
Illinois

St. Peter is a village located in Fayette County, Illinois. St. Peter has a 2026 population of 312. St. Peter is currently declining at a rate of -0.32% annually and its population has decreased by -2.5% since the most recent census, which recorded a population of 320 in 2020.

312
Total Population
599
Density (mi²)
-1 -0.32%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)